Switch



March 2 ,1926

J. LUKASZEWSKI Filed Abril 50 192s FIG.1.

SWITCH 2 Sheets-Shet 1 Elm 04214 501 (IL u/k-wdz ewdizz' March 2 1926.1,575,172

( J. LUKASZEWSKI SWITCH Filed April 30, 1925 2 Sheets-Sheet 2 X 27 17;'q

' EEC! I F IG. 5. Z 1m Patent d M r. 2,1926;

A 7. 1,575,172 rrsnr jorrics- JOHN LUKASZEWSKI, oFoH IoAG -IL INoIs.

' SWITCH.

R -2 p namn filed April :30, 1925. Serial No. 27,005.

- Tool liwho m it mag concern:

d {Beit known thatQLjIoirrr,LnKAsZEWsKI, a" citizen {of the-gUnitedStates of America,

residing. at Ghicagm' in the county of Cook I and State iof' 'Illinois-,have invented. certain -new ,and useful Improvements inlSwitches, -Dfwhich theffollowingj isfa specification.

' I Theprese'nt invention "relates to improvements in switches.

, ties may, be ..distantlyseparated, or f onelor several movable]:electric instrumentalities and; their "sourcef of current supply may 'be.distanu jsepmted withoutnecessitating the disconnection fi'gthe'lead'wires, extending.

from saidiinstrurnentalities;or current supply, froin thel elementsliofthe} switch to 1 which :theyj.,are"connectedjwhen the switch .25 j. 01 161? Qbject s'fand; ad ntages' .oftheim =ventionbe apparent during thecourse "of-the "following;description I f In theaccompanying drawlngsformlng a .,"numerals. are iemployednfl to designate. like is assembledfor, operation.

-.p art of this specification-andinwhich like ra .th ishoiiti Same,

Figurejlisjaiplan View; of atype of switch embodyingthislinvention,

switch structure showniin Fig.1,

re 2: if a I nd-elevational vi w t he form 'ofswitch shown in Fig.5,

Figure 7. is a fragmentary. perspective, view. of: the main body portionof the switch Q Structure shOvvn'in Fig.11, I p ,Figure 8. a?fragmentary perspective view ofaone endof a removablepjortion of I aswitch capable of. being; used in connec- I 5 tion with '1ther of. thetypes of switches 5 shewa in igs. 1 and 53am ,iis; a,..fia mena r we ary1 obj ect; of ,this invention is I .1theprov sion of a switchadaptedzforuse in radio and manyj other,. -types.' of circuits and ischaracterized by the removabilityv of a, certain portion or portions ofthe switch f -rom;.'thei main portion, 3 whereby several, relative] ymovableg electric, instrumentali-.

plan View view of one end of the body .portionof the switch structureshown in 'Figs.l5 and 6.

In;the drawings, wherein for the purpose of illustration is shown apreferred embodiment of this invention, the numeral 5 in are cutawayinwardly from; their top faces to form the grooves 7 and "shoulders Sex-This main body portion or mounting block 5 s illustrated as havingfastenedthereto which are connected at their 'free ends by the strip 10having the operating knob .11. In Fig." 3 thefastening elements 12. forthe movable members 9 areillustratedas having terminals 13extending'the'refrom .to which electric lead wires, not shown, may beconnected by the screws 14:."

as havingthe tongues l6'extendinglongi- .1Figs. 1 to 4 inclusive and 7designates the maln'body portion or mounting blockof a 'switch which isshown in Figs. land 7 as having the laterally projecting arms 6 which dtending right angularlytoi the said grooves.

the pivotally movable members or 'blades'9 A strip 15 is shown inFigsQl, 3, 4, 7 a nd 8 3 tudinally from the opposite-ends thereofandshaped to be received within the grooves 7- formed inthe armso. ,The endportions of adapted to rest upon the shoulders 8 when the tongues arepositioned inthe grooves 7. The end faces 15*, see Figs. tand 7 ,of thethestrip 15, adjacent the .tongues16, are

strip 15 are intended toengage the faces 6i of the arms,iformedbythecutting away .ofthe arms to provide the shoulders 8, topreventlongitudinalshifting of the strip-'15 'movably'hold .the .strip15in the position illustrated in Figs. 1, 3 and' 4, with the tongues 16received within the grooves 7,

the latch members 17 i are pivoted 18 to the main body portionrormounting block 5 and Y are adapted wbe arrangedrto overlie: the

into the. position illustrated in Fig. 7 for tongues 16. To permit theremoval of the 1 strip 15, the latch members 17 maybe swung permittingthe tongues 161to be lifted out I of the grooves17; The strip15 isprovided with the contacts 19 which are provided in equal ninnbers tothe movable, members or blades 9 and are arranged 1n allnement.

therewith. The contact members 19 are illustrated in Figs. 1, 3 and 41as being pro-- vided with the terminals 20 to which elec= trio leadwires, not shown, may be fastened 'byflthe screws 21.

11; will nowbe thatthe st i 15 may '20 a In Figs'. 5;"6 and 9 a modifiedform of be very quickly and easily assembled or dis semble'd in-respectfo the main body portion or mountingblock 5 of the switch and: whenassembled Willbe properly located lto a'ali-ne the contacts, :19 with.the movable members ior blades 9 so'that pivotal movement ofthesemembers toward the contacts 19 Will cause the said members and contactsto-electricallya engage each other". PFa'stemng means I'GCGIV? 10-ing" apertnies may be formed at any desired points inithe mainbodyportion or mounting block; 5 r or they may be formed in the cealedwhenflthe entire switch is operative-1y 'assembl'e dl To permit thelatch members 17 to be easily and; conveniently shifted into.

I theirflockingor ;unlocking positions,' the ;.:Stri1ct re includes themain i np mounting 23' 1e ing the arms r jecting laterally therefro n'and arranged in drivenby self-contained'zelectric f'motors operatingknobs'22 are 'suitably"connected' "to'thefr'e'e' en'clsfthereof,

svv'itchfl structure is; illustrated." -'I-hi$ switch opposedpairs-.?"Each of tl'IeSe-brmsKZet is cutaway to,formfaigroove-25-andars'houl'der' gployed inste'ad'of the single strip-'shownin i j fThe"sameltype of removable strip 115' fi'nay be.used:'infconnection'Withthis main bodyporti'onor monntingblock 23 and' its laterally projectingarm's-24. Int-his switch structure; howei' er, two"strips 15 are em-Figs inclusive 7 These strips are pr0- yidetl' with" contact members ltl'whic'h'wi ll b :arrange-Clfin longitudinal alin'ement Withthe'movable"members 'or blades 9f carried by 23-; The pair of removable'jstrips1'51; a1"e each I 1iprovided"with apair; 'ofpivotally mounted" latch'-membersfl79. The? latch members fas ening eafi 2W m whi h yth'efs'aidmembers 'or bla'des' 9-are secured'to "the main bo'cly portion or1no1mting block 17 .211; each enetofthemain body portion ormountingfblock 23 are connected to the lat- "l ter :bythe common fulcrumpins 18*; asbest f illus'trated inY Figs. 5 and f6; 7

'* Themovablemembers'or'blades Q'are'con nected tovmoveinunison bytheimember 10* z'whiclris provided' withan operating knob 1 i be t l usat d iji'Fi s 5 nd 6:.

It i l nQw e seent t with tbegs rips :1

peratijvely' assembler-1' in respect to f the ounting b ock th m v be'memb f i r 3 m 'n it th fc a' i s h i d by ether blades 9 may besvvungin' either direction for {selectively bringing the same intoengages fip 5- h ovem n of, e'members ine andim nef'o'f perating fd fiferent 'forms'ofsvvitche's ernbodyingthis in- 'inet maybe connect-ed jtothe movable man-T7 bers or blades 'of the swi tches and suclrele 1iments as an antennaya loud speaker unit an 'A battery, and a] B batterymay be; c'o necte'd'to the contactscarried thei'emcvswitch when theradio cai'binet" was to be-r'e [andfthemovable member's or bladesg ThisL 5 general type O'f switch equally adapted for; i use in connectionwith, pOrtabIeQmacI'iine v Whenusedf in connectionflwith such instru Im'anently upon the .movabl'e machine on it 5 rent supply lines are" suaila'ble, and. by hjav of the invention grooves in a position to permitsaid members ingdravvings, however, it-might -be Well to notethatthese'types ofswitch structure are a I I especially adapted for usein connection with I" v radioi'setsnor other types of'movable electriclQf instrumentalities. It Willbe noted,"in con 7 Y nection with a radioset, that either of the types of switches may bemounted upon or s. [Qwithin a radio cabinet whereby the control if or tuninginstrumentalit'ies ithin the cab-* able strips 15 .f-Withthisjarrangement the Q 1" saidstrip's could be separated' from-the mainbody" portion" or i'nounti ng'Ibl-oolii "of the":

moved "to a "distant" point; removable strips thereby, permittingthevarious lead t Wires; to remain 'c'onne'cted to the contactsinentalities', the mainbo'dy portion .or nountping" block-of the "switchin ay" bemoiin'tedflper electric power unit, The machineimay' then 5 bemoved to" anyofits predetermined: points of operation, for points Whereelectric our ing the electric "current 'supplyjli'nes connect-j? I ed tothe conmeemembers of a removable; f o

strip; the *strip at that: *paiiticnlar location may be quicklymounte'dlin place,an'd -the -movable members or blades piVOtedtdclosthe'Qircuit deSired.'"'"

It is to' be 'understood that the ior m's'o this inventionherewitlishownpand describe are to betakenas 'preferredexamples 'oftheit same, and that various changes in. the shape size, and arrangementof parts maybe-re sorted to Without departing from thefspiritj or thescope; ofxtheflsub-jj joinedclaims. Q v I o I Having'ithus described theinvention, 1. In a switch,'a mountingbloclga lu rala 1 i'ty ofgrojove'darms'projecting there rom; Ia plurality of movable membersfastened to the block, .a plurali t'y ofcontact's, a-s'upport for; saidcontacts and rrecei'vable in said' grooves, and latch membersmovableinto and out of positions "covering-the groovesfor removablyholding said support. in said" t be moved into engagemenflwith saidfcong2; Ina switch, aijnountingfb lockyaphnjal i'ty of grooved: arms.projecting therefrom;

a plurality of movablemembers"fastened to e the block, meansjconnectingsaid members to" so a cause th'em'to move in"unison, a multiplicity a,of contacts divided into tWo sets, a support for eachset andreceivablev in said grooves,

' and latch members for removably holding said supports in the groovesin positions to permit the' mernbers .to be selectively moved intoengagement with either set of contacts.

Inaswitoh, a mounting block, a'pluralityof arms projecting therefrom,said arms each havinga groove formed therein, aplu- 10 rali-ty ofmovable members fastened to said I block,, a plurality of contacts to beengaged by said movable members, a support for "said contacts-havingtongues to be received infsaidfl grooves, and means for'removably jl5holding'said'tongues in said grooves;

4. In a switch, a mounting block, a pair of arms projecting laterallyfrom opposite sides of said block, said arms each having a groove formedtherein, a plurality of interconnected movable membersfastened to saidblock, a multiplicity of contacts divided into two sets,'a supportforeach set having a pair of tongues to be received in the grooves ofone pairjof arms, and means for independently removably holding said"tongues in said grooves, said members being adapted to be moved intoengagement with either set of contacts.

In testimony whereof I afiix my signature. 7

JOHN LUKASZEWSKI.

